Using a machine cannot increase the amount of but can increase the amount of

question 3 options:

total work done, force being applied to the object

force being applied to the object, total work done

power being used, energy being transferred

energy being transferred, power being used

Aball bearing at 220.0 °c is dropped into a cup containing 250.0 g of water at 20.0 °c. the water and ball bearing come to a temperature of 30.0 °c. what is the heat capacity of the ball bearing in j/°c? (hint: how are the algebraic signs of q related for the ball bearing and the water? )

Which notation is used to represent an alpha particle? a. b. c. d.

How many times did thomas edison mess up the light bulb